105254444243 has 16 divisors (see below), whose sum is σ = 117601456896. Its totient is φ = 93546472320.

The previous prime is 105254444221. The next prime is 105254444257. The reversal of 105254444243 is 342444452501.

It is a cyclic number.

It is not a de Polignac number, because 105254444243 - 2¹⁰ = 105254443219 is a prime.

It is a super-2 number, since 2×105254444243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105254444197 and 105254444206.

It is not an unprimeable number, because it can be changed into a prime (105254444203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 583496 + ... + 742277.

It is an arithmetic number, because the mean of its divisors is an integer number (7350091056).

Almost surely, 2^105254444243 is an apocalyptic number.

105254444243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

105254444243 is a deficient number, since it is larger than the sum of its proper divisors (12347012653).

105254444243 is a wasteful number, since it uses less digits than its factorization.

105254444243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326014.

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 105254444243 its reverse (342444452501), we get a palindrome (447698896744).

The spelling of 105254444243 in words is "one hundred five billion, two hundred fifty-four million, four hundred forty-four thousand, two hundred forty-three".